(134340) Pluto
ephemeris date magn radius delta ra dec elong phase
Today18 Jun 202515.135.286 AU34.464 AU20h24m-23°03'143.5°1.0°
Opposition24 Jul 202515.035.311 AU34.297 AU20h21m-23°18'176.2°0.1°
(134340) Pluto - 2025-06-18
astro.vanbuitenen.nl


 
-1 year
-1 month
-1 day
Now
+1 day
+1 month
+1 year

The interactive orbit chart above shows the body's path through the solar system and its position at the given date. Green and blue lines are shown perpendicular to the ecliptic plane: Green if the path is above the ecliptic plane, blue if it is below. (Left-click and drag to rotate the view; Right-click and drag to move the view; Use scroll wheel to zoom in our out.)

The orbital elements of Pluto are:

            e (Eccentricity)                : 0.2467311
            a (Semimajor axis)              : 39.3621595
            i (Inclination)                 : 17.17189
            Ω (Longitude of ascending node) : 110.33331
            ω (Argument of perihelion)      : 113.37788
            M (Mean anomaly)                : 52.17719
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 44.67764
            B (Latitude of perihelion)      : 15.72393
            P (Orbital period in years)     : 246.96            
        

The light curve chart below shows the estimated development of the minor planet's magnitude.


The all-sky chart below shows the path of the minor planet over the same period as the light curve. The current position is marked yellow.





The following chart shows the path of the minor planet in the next few days. The field of view is optimized for (~10x50) binoculars and finderscopes. A more printer-friendly version of the same chart can be found below.




Ephemerides:
Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-06-18 00:00 UT   20 24 58.9   -23 03 24    34.464   35.286  143.5    1.0   261   15.1 
2025-06-18 06:38 UT   20 24 57.7   -23 03 31    34.462   35.286  143.7    1.0   261   15.1 
2025-06-19 00:00 UT   20 24 54.5   -23 03 48    34.455   35.287  144.4    1.0   262   15.1 
2025-06-20 00:00 UT   20 24 50.0   -23 04 12    34.446   35.287  145.4    0.9   262   15.1 
2025-06-21 00:00 UT   20 24 45.4   -23 04 36    34.437   35.288  146.4    0.9   262   15.1 
2025-06-22 00:00 UT   20 24 40.8   -23 05 01    34.429   35.289  147.3    0.9   262   15.1 
2025-06-23 00:00 UT   20 24 36.1   -23 05 25    34.420   35.289  148.3    0.9   262   15.1 
2025-06-24 00:00 UT   20 24 31.3   -23 05 50    34.412   35.290  149.3    0.8   263   15.1 
2025-06-25 00:00 UT   20 24 26.5   -23 06 15    34.405   35.291  150.2    0.8   263   15.1 
2025-06-26 00:00 UT   20 24 21.6   -23 06 40    34.397   35.292  151.2    0.8   263   15.1 
2025-06-27 00:00 UT   20 24 16.6   -23 07 05    34.390   35.292  152.2    0.8   263   15.1 
2025-06-28 00:00 UT   20 24 11.6   -23 07 30    34.383   35.293  153.1    0.7   264   15.0 
2025-06-29 00:00 UT   20 24 06.5   -23 07 55    34.376   35.294  154.1    0.7   264   15.0 
2025-06-30 00:00 UT   20 24 01.4   -23 08 20    34.370   35.294  155.1    0.7   264   15.0 
2025-07-01 00:00 UT   20 23 56.2   -23 08 46    34.363   35.295  156.0    0.7   265   15.0 
2025-07-02 00:00 UT   20 23 50.9   -23 09 11    34.357   35.296  157.0    0.6   265   15.0 
2025-07-03 00:00 UT   20 23 45.6   -23 09 36    34.352   35.296  158.0    0.6   266   15.0 
2025-07-04 00:00 UT   20 23 40.3   -23 10 02    34.346   35.297  158.9    0.6   266   15.0 
2025-07-05 00:00 UT   20 23 34.9   -23 10 27    34.341   35.298  159.9    0.6   267   15.0 
2025-07-06 00:00 UT   20 23 29.4   -23 10 53    34.336   35.298  160.8    0.5   267   15.0 
2025-07-07 00:00 UT   20 23 23.9   -23 11 18    34.332   35.299  161.8    0.5   268   15.0 
2025-07-08 00:00 UT   20 23 18.4   -23 11 44    34.328   35.300  162.7    0.5   269   15.0 
2025-07-09 00:00 UT   20 23 12.9   -23 12 10    34.323   35.300  163.7    0.5   269   15.0 
2025-07-10 00:00 UT   20 23 07.3   -23 12 35    34.320   35.301  164.6    0.4   270   15.0 
2025-07-11 00:00 UT   20 23 01.6   -23 13 01    34.316   35.302  165.6    0.4   271   15.0 
2025-07-12 00:00 UT   20 22 56.0   -23 13 26    34.313   35.302  166.5    0.4   272   15.0 
2025-07-13 00:00 UT   20 22 50.3   -23 13 52    34.310   35.303  167.4    0.4   274   15.0 
2025-07-14 00:00 UT   20 22 44.5   -23 14 17    34.308   35.304  168.4    0.3   275   15.0 
2025-07-15 00:00 UT   20 22 38.8   -23 14 43    34.305   35.305  169.3    0.3   277   15.0 
2025-07-16 00:00 UT   20 22 33.0   -23 15 08    34.303   35.305  170.2    0.3   279   15.0 
2025-07-17 00:00 UT   20 22 27.2   -23 15 33    34.301   35.306  171.1    0.3   281   15.0 
2025-07-18 00:00 UT   20 22 21.4   -23 15 59    34.300   35.307  172.0    0.2   284   15.0 


    Terminology:
            
    delta:  distance between minor planet and earth in AU
    radius: distance between minor planet and sun in AU
    magn:   magnitude (brightness) estimate    
    ra:     right ascension in hours (24h = 360deg)
    dec:    declination in degrees
    elong:  elongation in degrees (angle sun-earth-minor planet)    
    phase:  phase angle in degrees (angle sun-minor planet-earth)        
    AU:     Astronomical Unit (mean distance between earth and sun: 149597870.7 km
    

Orbital elements provided by the MPC (Minor Planet Center).
Calculations by a modified version of AAPlus, a C# implementation of the AA+ project by PJ Naughter from the algorithms presented in the book "Astronomical Algorithms" by Jean Meeus.
NGC2000 dso catalog and star labels from VizieR as provided by the Strasbourg astronomical Data Center.
Tycho2 catalog from the ESO archive.